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TSA5522M 数据表(PDF) 3 Page - NXP Semiconductors |
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TSA5522M 数据表(HTML) 3 Page - NXP Semiconductors |
3 / 20 page 1996 Jan 23 3 Philips Semiconductors Product specification 1.4 GHz I2C-bus controlled synthesizer TSA5522 QUICK REFERENCE DATA Note 1. One band switch buffer ON; Io = 20 mA. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCC1 supply voltage (+5 V) 4.5 − 5.5 V VCC2 band switch supply voltage (+12 V) VCC1 12 13.5 V ICC1 supply current − 22 30 mA ICC2 band switch supply current note 1 − 27 32 mA fRF RF input frequency 64 − 1400 MHz Vi(RF) RF input voltage fi = 80 to 150 MHz − 25 − 3 dBm fi = 150 to 1000 MHz − 28 − 3 dBm fi = 1000 to 1400 MHz − 26 − 3 dBm fxtal crystal oscillator input frequency − 4 − MHz Io(PNP) PNP band switch buffers output current − 20 25 mA Io(NPN) NPN open-collector output current − 20 25 mA Tamb operating ambient temperature −20 − +85 °C Tstg storage temperature (IC) −40 − +150 °C GENERAL DESCRIPTION (see Fig.1) The device is a single chip PLL frequency synthesizer designed for TV and VCR tuning systems. The circuit consists of a divide-by-eight prescaler with its own preamplifier, a 15-bit programmable divider, a crystal oscillator and its programmable reference divider and a phase/frequency detector combined with a charge-pump which drives the tuning amplifier, including 33 V output. Three high-current PNP band switch buffers are provided for band switching together with four open-collector NPN outputs (only one open-collector output on 16-pin devices). These ports can also be used as input ports [one Analog-to Digital Converter (ADC) and three general purpose I/O ports (not available on 16-pin devices)]. An output is provided to control a Philips mixer/oscillator IC in combination with the PNP buffers state. Depending on the reference divider ratio (512, 640 or 1024), the phase comparator operates at 3.90625 kHz, 6.25 kHz or 7.8125 kHz with a 4 MHz crystal. The LOCK detector bit FL is set to logic 1 when the loop is locked and is read on the SDA line (status byte) during a read operation. The ADC is available for digital AFC control. The ADC code is read during a read operation on the I2C-bus. The ADC input is combined with the port P6. In the TEST mode, this port is also used as a TEST output for fref and 1 ⁄2fdiv (see Table 4). I2C-bus format Five serial bytes (including address byte) are required to address the device, select the VCO frequency, program the ports, set the charge-pump current and the reference divider ratio. The device has three independent I2C-bus addresses selected by applying a specific voltage on AS input (see Table 3). The general address C2 is always valid. |
类似零件编号 - TSA5522M |
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类似说明 - TSA5522M |
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